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Astrophysicist and new Cosmos host Neil deGrasse Tyson speaks quickly, efficiently, and entertainingly about the biggest ideas in the universe. But slow down his speech and he sounds absolutely stoned out of his gourd, as a recent video proved. (“How does that work?” he says midway through, hilariously, before counting his fingers.)

Tyson, far from being offended, liked the video, too; he played it at a lecture in Toronto this weekend for a giggling audience. I can’t stop reading everything from him in that voice now.

Here’s the original slow-mo video:

And meanwhile, another industrious YouTuber slowed down Carl Sagan:

Gawker